Locomotive-tender.



N. M. LOWER.

LOCOMOTIVE TENDER.

" I LAPPLICAfIOIf ruin-Una. m1. Patented Feb- 26,1918:

ZSHEETS-SNEEI L I N. M. LOWER. LOCOMOT IVE TENDER. APPLICATION HLED IAY[8. I911.

Patented Feb. 26. 1918.

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UNITED STATES ATENT OFFICE.

35mm 1;. rosvnn, or rrr'rssuncn, rnimsvnvmm, ASSIGNOB ro ocouorrvns'roxnn column, A COLBPORATION or PENNSYLVANIA.

noco'mo'rrvns'rnnnnn.

Application filed May 18, 1917. Serial No. 169,484.

To all whom it may concern Be it known thatIfNArnnn M. Lownrn-a citizenof the United States, and resident of Pittsburgh, county of Allegheny,and State of. Pennsylvania, have -'invented certain new end usefulImprovements in To con otive-Tenders, of which the following is a;specification, and which are illustrated in the accompanying drawings,forming a part thereof.

with fuel bins and with Iheans for advancing the fuel from the rear endo'f the bin either to bring it within easy reach of the fireman or todeliver it to a stoke-r mechanism. 4

The object of the invention is to provide improved means for controllingthe motor which uctuates the fuel advnncing means. In devices of thischaracter the motor is usually located at the rear end of the bin,either being housed within or mounted above the water tank; and it hasbeen the usual practiceto control such motor by means of I a system oflevers operated by a hand crank or wheel located at the forward end ofthe is hereinafterdescribed, and is illustrated in the accompanyingdrawings in which Figure-1 1s a detail vertical longitudinal section ofthe tender;

Fig. 2 is a longitudinal sectional detail of the motor and a'preferredform of distributin valve; and

ig. 3 is a similar view showing a modified form of construction-of thevalve.

The tender is generally indicated by the numeral 10, and is provided.with a fuel bin" 11 over the bottom. of which reciprocates a pusher head12,-actuatcd by e fluid motor 13 oused Within a casing 14 built into thewater tank 15. As thus fat-described the device is substantiallyideuticabwith that The invention relates to tendersprovided V providesfor an forming the subject of 'a'pending' application of Edward Ryan,Serial No. 104,142.

.The motor 13 is of the single stroke reciprocating type, being providedwith a piston 16 and a. distributing valve, the casing of which isdesignated 17. Fluid pressure, such as steam or com ressed air, issupplied to the valve casing mm a suitable source of supply throu h apipe 18, and an-exhaust p1 19 leadsi om this casing. The. distriuting-valve is controlled by means of a relief valve 20, shown aspositioned below the forward end of the tender and connected withthevalve casing by apipe 21. and operated by a hand wheel 22- .Withineasy reach of the operator, and connected with the valve 20 by means ofaffod 23.- Steam. or pressure ports 25, lead fronr the valve casing tovthe opposite ends of the motor cylinder 13, and exhaust ports 26, 27,lead from the opposite ends oftlle cylinder Patented Feb. 26, 1 918.

to the valve casing and enter the. le e tween the'pressure. ports. Theexhaust ports are sopositioned with reference to the cylinder that theyare out oil or closed by the piston 16' :before it reaches" thecylinder. heads, in orderto provide a'cushioning action.

The distributing valve 28 is cylindrical in form and-cha1nb ercd, beingopen at one end, as shown. at 29, its opposite end -36 be ing closed andconstituting a piston, there being adjacent this piston head lateralports 30, 30, adapted to register, in one position of the valve, withthe pressure port 24:. The length of the valve is such that in. theposition of Fig. 2 the pressure port 24 is uncov-- ered, the ports 30being out of register with the port 25. The valve is provided with anannular peripheral cavity 31, adapted. to alternatelyuncover the exhaustports 26, 27, and being at all times open to theexhaust pipe 19. p Thevalve is controlled by means of a piston 32, rigidly connected to it bymeans of a stem 33 and being of greater diameter than the valve-andreciprocating inv a oyhn: I

-d rical extension 34 of the valve casing. The

steam pipe 18 enters the casing between the piston 32 and the valve. Asmall byrpass 85,

shown as extending throngh'the piston 32, ualization of reseure uponboth sides of t 0 piston; As

sure at t-he valve side 0 the piston 82 meta epres.

between this the effective pre onderance of area on the oppogite side 0the piston 32 causes the llllngg0f the valve to the'position shown in1g. v

The relief valve 20, which may be of any suitable form of construction,is of greoter capacity than the passage 35, and when opened exhausts thesteam from the outer end of the cylinder 34;, whereupon the pressureupon the opposite face of this piston moves it to the right and shiftsthe valve to close the pressure port 24 and exhaust port 27 and open thepressure port and exhaust. ort 26. The motor piston 16 is thereuponriven to the opposite end of the cylin der, and there remains until therelief valve 20 is closed. -As soon as the pressure is again equalizedat the opposite sides of the piston 32, the valve is moved to the leftthe position shown in Fig. 2, and the motor piston. returned to theposition there shown In order to advance the pusher heed. 12.2 from theposition. shown in Fig, l, the open utor opens the relief valve ill) bymanipulating the hand Wheel 22, and soon as: the advance strokecompleted he closes this valve and the pusher heel is withdrawn. underthe fuel in readiness for the next edvnnce stroke.

In the modification shown in Fig. 3, the

l distributing valve 87 is shown as having a solid body with an annularexhaust cavity 38, thepressure ports 2-4, 25, communicating with themotor cylinder being alternately uncovered by the body of the valve andthe valve casing 39 being-provided with a duct "40, into which the steampipe enters and. which leads to both-ends oi the casing. The

controlling piston 41 while of greater di amcter than the valve issmaller than the piston 32 in the construction illustrated in Fig. 2. Aspring 12, interposed lxetween the outer face of this piston and thehead of the cylinder within which it reciprocates, in sures the promptmovement of the distribut ing valve when the relief valve 20 closed,

and pressure is equalized on both sides of the iston through thelay-pass steam pi e 18 and the pipe 21 leading to the relief valve 20may be located in any evailable space without interfering 1th 'anyoftheother mechanism of the tender,

such as the draft gears and brake devloes.

In' itsb'roed'er aspects, the invention is not piston and the pistonhead 36,

of the pusher head, the motor. and its metributi'ng valve, and therelief valve, and various changes may therefore be mad from thestructures disclosed without departing from it.

I claim as my invention-- l 1. In a locomotive tender huvin av fuelbill, in combinzmion a reciprocating fuel pusher in. the bin, 2:s1ngle-stroke fluid motor for actuating the pusher, a fluid-controlleddistributing valve normally open to one end of the motor cylinder, and arelief valve for controlling the distributing valve.

2 In a locomotive tender havin a fuel bin, in combination, areciprocating fuel pusher in. the bin, n singlestroke fluid motor foroat-touting the pusher, e fluid-controlled dietrihuting valve normallyopen to one end of the motor cylinder, and a valve for eontrolling thedietributing valve.

In locomotive tender having afuel bin in combi ttion, e l"fi 2i}l1()flltbll1g fuel pusher in the bin, einglestrolne fluid motor foractuating; the pusher, e iiuirbcontrollerl distributing valvemun'uillyopen to one end r of the motor cylinder and having a normallypusher in the bin, 3 single-stroke fluid. n o- .torfor actuating thepushera .distrlbutmg valve of the piston type, 32 controlling pistonreciprocating in the casing of'the valve and connected to the valve,e-normally ogien pipe leading from n source of pressure to the casing ofthe valve and communicating; therewith between the valve and the piston,a bypass for delivering pressure to opposite side of the piston, andvalve for relieving pressure trimsmitt l through the Icy-puss.

5.711 s. locomotive tender having 21 fuel him in comliiimition y'msherhead reciprocable in the bin for advancing fuel; asingle strokeactuating motor back of and connected with the head, apressurecontrolled distributing valve for the motor normally open to oneend of the motor cylinder, and a relief valve located at the forward endof the tender for controlling the distributing valve.

NATHAN M LOWER.

